Abstract
Silica nanotubes were synthesized via sol-gel process using poly(ethylene glycol) functionalized multi-walled carbon nanotubes (MWNT-PEG) as the dual templates. Through the hydrolysis of tetraethoxysilane (TEOS), a continuous coating of silica was deposited over the MWNT surfaces to form core-shell structures. Hollow silica nanotubes were finally obtained by removal of core carbon components through calcination. The as-prepared hollow silica structures were characterized by electron microscopy, energy dispersive X-ray spectrometry and infrared spectroscopy. The synthesized silica nanotubes might find potential applications in many fields such as encapsulation, catalysis, biological separation, and sensing.
Keywords: Multi-walled carbon nanotubes, poly(ethylene glycol), silica nanotubes, sol-gel process, dual templates, calcination
Current Nanoscience
Title: Dual-template Assisted Synthesis of Silica Nanotubes
Volume: 6 Issue: 3
Author(s): Qiulin Liao, Yexiang Wang, Yong Gao and Huaming Li
Affiliation:
Keywords: Multi-walled carbon nanotubes, poly(ethylene glycol), silica nanotubes, sol-gel process, dual templates, calcination
Abstract: Silica nanotubes were synthesized via sol-gel process using poly(ethylene glycol) functionalized multi-walled carbon nanotubes (MWNT-PEG) as the dual templates. Through the hydrolysis of tetraethoxysilane (TEOS), a continuous coating of silica was deposited over the MWNT surfaces to form core-shell structures. Hollow silica nanotubes were finally obtained by removal of core carbon components through calcination. The as-prepared hollow silica structures were characterized by electron microscopy, energy dispersive X-ray spectrometry and infrared spectroscopy. The synthesized silica nanotubes might find potential applications in many fields such as encapsulation, catalysis, biological separation, and sensing.
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Cite this article as:
Liao Qiulin, Wang Yexiang, Gao Yong and Li Huaming, Dual-template Assisted Synthesis of Silica Nanotubes, Current Nanoscience 2010; 6 (3) . https://dx.doi.org/10.2174/157341310791171081
DOI https://dx.doi.org/10.2174/157341310791171081 |
Print ISSN 1573-4137 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6786 |
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